211231231140004 has 12 divisors (see below), whose sum is σ = 372135558217500. Its totient is φ = 104906785935008.

The previous prime is 211231231139987. The next prime is 211231231140011. The reversal of 211231231140004 is 400041132132112.

It can be written as a sum of positive squares in 2 ways, for example, as 48389386237504 + 162841844902500 = 6956248^2 + 12760950^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 177207408079 + ... + 177207409270.

It is an arithmetic number, because the mean of its divisors is an integer number (31011296518125).

Almost surely, 2^{211231231140004} is an apocalyptic number.

It is an amenable number.

211231231140004 is a deficient number, since it is larger than the sum of its proper divisors (160904327077496).

211231231140004 is a wasteful number, since it uses less digits than its factorization.

211231231140004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354414817502 (or 354414817500 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 211231231140004 its reverse (400041132132112), we get a palindrome (611272363272116).

The spelling of 211231231140004 in words is "two hundred eleven trillion, two hundred thirty-one billion, two hundred thirty-one million, one hundred forty thousand, four".